Selenium and Type 2 Diabetes

Selenium supplementation and the possible risk of developing type 2 diabetes, what do we know? This is a complex issue. Many different biological, hormonal, and environmental factors have an effect on the relationship.

Selenium and diabetes interrelationship
Observational evidence points to relevant sex differences in the selenium-diabetes interrelationship. There may be potential harmful effects in men living in selenium-rich areas and in men with high habitual selenium intake. Research shows potential benefits of selenium on diabetes risk in women selenium-deficient areas or in women with low selenium intake.

In a 2024 review, Demircan and a selenium research team headed by Prof Lutz Schomburg, Charité Berlin, investigated the current evidence for a relationship between selenium and type 2 diabetes. Recent evidence points to selenium intake and serum selenium status as relevant factors in the study of type 2 diabetes complications and prognosis.

Two studies based on data from the National Health and Nutrition Examination Survey (NHANES) in the United States have identified selenium intake and serum selenium status, respectively, as associated with the improved survival of type 2 diabetes patients [Demircan 2024]. read more

Selenium Status and the Risk of Gestational Diabetes

Lower selenium status during pregnancy means there is a greater risk of developing gestational diabetes [Hamdan 2022; Xu 2022]. Three different selenium biomarkers in early and late pregnancy show a quite strong association of selenium with 1) the risk of developing gestational diabetes mellitus and 2) the birth of large for gestational age offspring [Demircan 2022].

Storks on a nest
Low maternal selenium status is strongly associated with an increased risk of gestational diabetes and with an increased risk of large for gestational age offspring.

The Mayo Clinic defines gestational diabetes as being diagnosed with diabetes for the first time during pregnancy. Gestational diabetes is like other forms of diabetes in that it affects how well the cells use glucose. It causes high blood sugar levels that can affect the mother’s health and the baby’s health [Mayo Clinic 2023]. read more